1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bdec0babdbe9f3a13f1d637b5b535673da1526cb0290e0aa32fa4fa8428a948. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0047c2e4-3910-4267-bfc1-2a8d62b31a9f.json and https://artists.proofprofile.net/proofs/artist/0047c2e4-3910-4267-bfc1-2a8d62b31a9f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05337ce0c0fcd6feac6e95af2c0f3ba7d3e4d529bedaf03be98e1afc7812118c. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:06:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU2462135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5bf1771a6901ddfd0ccf03c3111ad9357edd7d68ad54077ca70345a647feb3. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU2462136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304527289f4fe68d7d28b09e13433ea6932d053577a41a853c472a982ce7b3d5. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU2462138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2747f5ce2568919acd12431e5c32b2dc9925038ab291284db7dbe72577a03ebc. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU2462139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9544acc8cbc45c79d7359532be66c4bff09b8db88d0fba01df75d7d01e14a49e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBHLW1603006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc884a2c72a63ed7e98a993adb2ec9452a070de7fd099f88507ba01169968ed3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6XS1807464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6a73d29f468b8d33ebee623d618ba79013816bee39aa57516e9f9096f25380. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEHI41800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44cfabb47fe5a31d3eebf2cbc548ad37b0617c50d226ab8cef22b95997a44460. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEHI41800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e73c71d52174e3860ed1034ac9cd2932b10d206d8e0385e93fc56fb596cd685. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEHI41800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6a73d29f468b8d33ebee623d618ba79013816bee39aa57516e9f9096f25380. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEHI41800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8d9eb6e8dcb213511101c5b413978dfbe74f71827a99ba3813ab71e69b52fc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEHI41800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb93459076259ac1591915d4c3e5647d3048ae57711cabfa95ea522572029a9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEHI41800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e73c71d52174e3860ed1034ac9cd2932b10d206d8e0385e93fc56fb596cd685. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEHI41800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d402002660358e51dfed798f448b4cf87f469ab0568f2e0f23c74a3a7367e38. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEP012100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34568bc964612e1e0e5d9fe5a190075974d2defa28b325173275229198bf828b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEP012100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d33d58ecaebf19a81c8a5b37b5a08d40b55f72926292340fe9c1574120f2e4. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEP012100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c363ef3872704355d4318f095abd32780debc909b3ad1cfc7062f176e59f83. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEP012100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159b12d02b4d261466def795cb3aa56b767dc880ba874c8be15f5db8a6b75bd0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEP012100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb8403dbae1bf538c0e30960615958fc7170968595cca9836851416981743c7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEP012100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222750e06fb56b719c607867e14db50caa96d858b8a78480d9e8d7c88e08907f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEP012310006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac3a035e437d7e1d030d568054416c382e593215c35edaf036b2659cfc3be53. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEP012310008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0c23e559900a1feb44599e5cfa019fe164a1ecab6f28610e5f02b88ccc9bbf. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEP012310009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb3b84375d09d1a3c7ca5b392776b4fad37882631729e0ec795ac1bab08b986. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEP012310010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b582302705cab244390037cdcef9626647a38b231865501d650b0bf02a6b0c. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEP012310011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe889bf69b4067f59dcd6a7fd3fdeca1d889f82b1d7a18ee882d939e7bcb3940c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEP012310012.